Home / 280,903.85-387,648.94-153,579.44

Finding the Fourth Proportional to 280,903.85, 387,648.94 and 153,579.44

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Solution

The fourth proportional to 280,903.85, 387,648.94 and 153,579.44 is: 211,940.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,903.85 : 387,648.94 = 153,579.44 : x
  2. Step 2: Convert to fraction form
    280,903.85/387,648.94 = 153,579.44/x
  3. Step 3: Cross multiply
    280,903.85x = 387,648.94 × 153,579.44
  4. Step 4: Simplify right side
    280,903.85x = 59,534,907,994.93
  5. Step 5: Solve for x
    x = 59,534,907,994.93/280,903.85
  6. Step 6: Final answer
    x = 211,940.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.